Pathways to Prevention (P2P) Program

Nutrition as Prevention for Improved Cancer Health Outcomes—Independent Panel

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About the Independent Panel

Each P2P workshop has an independent panel that provides a balanced, objective, and informed assessment of the workshop topic. The panel is an unbiased group with diverse perspectives. Panel members attend the workshop, where they listen to and ask questions about presentations from expert speakers. Then the panelists write a report that summarizes the workshop and highlights research gaps and future priorities. The recommendations in the panel’s report are for use by the broader research community. Panel reports are not policy statements of the NIH or the federal government.

Workshop and Panel Chair

 Robert A. Hiatt, M.D., Ph.D.

Robert A. Hiatt, M.D., Ph.D., is a Professor and immediate past Chair of Epidemiology and Biostatistics at the University of California, San Francisco (UCSF), and also the Associate Director of Population Sciences for the Helen Diller Family Comprehensive Cancer Center. His research interests are in cancer epidemiology, especially breast cancer epidemiology, health inequities, environmental health research, global health science, implementation science, and in leading successful and productive large-scale, multicomponent research projects. He was responsible for developing the Ph.D. program in Epidemiology and Translational Science at UCSF, and was the first Deputy Director of the National Cancer Institute's Division of Cancer Control and Population Sciences (1998–2003). He is a past President of the American Society of Preventive Oncology (1993) and the American College of Epidemiology (1998). He has been a member of the American Epidemiological Society since 1991. Currently at UCSF, he is the Principal Investigator of the National Precision Medicine Initiative, All of Us, and directs the San Francisco Cancer Initiative.

Panel Members

 Margaret F. Clayton, Ph.D., FNP-BC, FAAN

Margaret F. Clayton, Ph.D., FNP-BC, FAAN, is a Professor Emerita and former Assistant Dean for the Ph.D. program in the College of Nursing, and former Academic Senate President at the University of Utah. Additional previous faculty appointments at the University of Utah include the Department of Communication and long-time membership and investigator status at the Huntsman Cancer Institute Division of Cancer Control and Population Sciences. Dr. Clayton was an inaugural member and former Chair of the Patient-Centered Outcomes Research Institute National Research Advisory Panel: Assessment of Prevention, Diagnosis, and Treatment Options. As both the Principal Investigator and a Co-Investigator, her sustained contributions as an interdisciplinary nursing scholar uniquely integrate nursing and communication science to inform understanding of the vital role of communication from cancer survivorship through end of life, including nursing-caregiver support on the day of patient death. Most recently, she is extending her end-of-life expertise to investigate the impact on patients and families, as well as inherent policy issues, for those experiencing live hospice discharge. Live hospice discharge impacts approximately 20% of admitted hospice patients, especially those with a less predictable end-of-life trajectory and unanticipated longer length of life. In ongoing research initially funded by the National Institute on Aging (R21AG060017; PI Tjia) and subsequent foundations, Dr. Clayton is part of a multidisciplinary team from University of Massachusetts Chan Medical School developing a nursing communication intervention focusing on the management of medications during home hospice care, with an eye to caregiver burden and hospice interdisciplinary team discussions of appropriate medication management. In earlier research, she was a Co-Investigator on a Program Project Grant (P01CA138317; PI Mooney) extending previous investigations of nursing communication during life-limiting cancer to address caregiver health and well-being. Dr. Clayton is currently providing expert consultation for The Breast Cancer Treatment Symptom Experience, Management and Outcomes According to Race Study (R01MD012245; PI Rosenzweig). She is the author or co-author of approximately 100 peer-reviewed publications and book chapters, with research findings disseminated in a wide variety of both communication and nursing journals, and presented nationally and internationally. Beyond her research, Dr. Clayton has an extensive history mentoring undergraduate, D.N.P. and Ph.D. students, as well as postdoctoral fellows. Complementing her research expertise, Dr. Clayton has over 25 years of clinical nursing experience, and is a board-certified Family Nurse Practitioner.


 Karen K. Collins, M.S., RDN, CDN, FAND

Karen K. Collins is a Registered Dietitian Nutritionist who promotes healthy eating as a consultant, speaker, and writer. For over 30 years, Ms. Collins has served in a consultant capacity as a Nutrition Advisor to the American Institute for Cancer Research. She has authored multiple peer-reviewed book chapters and research summaries for health professionals covering cancer prevention guidelines and their intersection with cardiometabolic health. She was a lead organizer in the development of the Picture Your Plate dietary assessment tool and a co-author of its validation study.

Ms. Collins also focuses on translating nutrition science for those outside the health professional community. She has penned over 2,000 nutrition-related articles for the public. She also conducted a private practice in nutrition counseling for many years. A Fellow of the Academy of Nutrition and Dietetics, Ms. Collins holds a B.S. degree in dietetics from Purdue University and an M.S. degree in nutrition from Cornell University.


 Heather T. Gold, Ph.D.

Dr. Heather Gold is a Professor and Director of the Section on Value and Effectiveness Research in the Department of Population Health at NYU Grossman School of Medicine; she also has a secondary appointment in health policy at the NYU Wagner School of Public Service. Dr. Gold received her Ph.D. in health services research and policy from University of Rochester, and master’s degree in public policy studies from the University of Chicago. Dr. Gold currently co-leads a collaborative National Cancer Institute-U.S. Department of Veterans Affairs (VA)-sponsored workgroup to develop a national guidance for economic evaluation in implementation science, culminating in a special collection of related articles in BioMed Central’s Implementation Science and Implementation Science Communications journals. Dr. Gold’s work focuses on determining how socioeconomic, racial/ethnic, and clinical variations in health care affect health and economic outcomes, especially in patients with cancer, musculoskeletal conditions, or multimorbidity. She applies econometric methods to analyze population-based data, conducts mathematical modeling for cost-effectiveness analysis, and is involved in implementation and evaluation of behavioral interventions and patient-reported outcomes. Her work has been supported by the National Institutes of Health, American Cancer Society, Centers for Disease Control and Prevention, and VA’s Health Services Research and Development.


 Adeyinka O. Laiyemo, M.D., M.P.H.

Adeyinka O. Laiyemo, M.D., M.P.H., is currently an Associate Professor of Medicine at Howard University College of Medicine in Washington, D.C. He obtained his medical degree from University of Lagos, Nigeria, and completed his internal medicine and gastroenterology training at Howard University Hospital in Washington, D.C. He subsequently completed a postdoctoral fellowship in cancer prevention at the National Cancer Institute, National Institutes of Health in Bethesda, MD. During this fellowship, he obtained a Master of Public Health degree with a concentration in epidemiology and biostatistics from Johns Hopkins Bloomberg School of Public Health in Baltimore, MD. He is board certified in internal medicine and gastroenterology. His research interest is in colorectal cancer prevention, cancer screening, and health disparities.


 Kimberly Parker Truesdale, Ph.D., M.S.P.H.

Dr. Kimberly P. Truesdale is a Research Associate Professor in the Nutrition Department, Gillings School of Global Public Health at the University of North Carolina at Chapel Hill (UNC). Dr. Truesdale received her M.S.P.H. and Ph.D. in Epidemiology from UNC. Dr. Truesdale’s research focuses on examining the cardiometabolic consequences of obesity and energy imbalance; analyzing anthropometric, diet, and physical activity data; and coordination of multicenter trials and project management. Dr. Truesdale is the Research Director of the Research Coordinating Center for the Disparities Elimination through Coordinated Interventions to Prevent and Control Heart and Lung Disease Risk (DECIPHeR) Alliance. The DECIPHeR Alliance is comprised of seven Implementation Research Centers and the Research Coordinating Center, and is funded by the National Heart, Lung, and Blood Institute. The overall goal of the DECIPHeR Alliance is to test implementation strategies that will increase the reach, adoption, and fidelity of evidence-based interventions to reduce or eliminate health disparities around heart and lung disease. Dr. Truesdale also serves as the Director of the Behavioral Assessment subcore of the UNC Nutrition Obesity Research Center, where she collaborates with investigators interested in collecting and examining dietary and physical activity data. Dr. Truesdale is the Chair of the Diversity, Equity and Inclusion committee in the Nutrition Department, and a member of the Gillings School of Global Public Health Inclusive Excellence Committee.


 Debra P. Ritzwoller, Ph.D.

Debra P. Ritzwoller, Ph.D., is a Senior Investigator at the Institute for Health Research. Her research focuses on variation in cancer screening and treatment, outcomes and costs in community settings, the impact of insurance benefit design on patient cost-sharing, and cost estimation and cost effectiveness.

Dr. Ritzwoller completed her doctoral training in economics at University of Colorado, Boulder. As an economist and health services researcher, she has served as a Principal Investigator (PI) or Co-Investigator on more than a dozen large, complex, multisite studies. Currently, Dr. Ritzwoller is the PI of the National Cancer Institute-funded Population-based Research to Optimize the Screening Process (PROSPR) Lung Cancer Research Center. The long-term goal of this multisite center grant is to identify critical gaps in the lung cancer screening process to improve quality and reduce lung cancer mortality, particularly among underserved populations. She is also involved in several studies related to health care systems' transition to telemedicine venues of care, and how this shift has impacted health care utilization and quality. She is currently serving as a Co-Investigator on several other cancer-related projects that address cancer caregiving, cancer recurrence, management of lung nodules, lung cancer screening quality metrics, and comparative effectiveness modeling approaches. Additionally, she is collaborating with national leaders in implementation science, and with research teams studying implementation initiatives in a variety of topical areas including lung cancer screening, asthma care management, and behavioral economics. Dr. Ritzwoller is also an Adjunct Professor in the Department of Health Systems, Management & Policy at University of Colorado School of Public Health. She has authored or co-authored more than 100 peer-reviewed manuscripts.



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